sift

1[transitive]sift somethingto put flour or some other fine substance through a sifterSift the flour into a bowl.

2[transitive,intransitive]to examine something very carefully in order to decide what is important or useful or to find something importantsift somethingWe will sift every scrap of evidence.Computers are being used to sift the information.sift through somethingCrash investigators have been sifting through the wreckage of the aircraft.

3[transitive]sift something (out) from somethingto separate something from a group of thingsHe sifted the relevant data from the rest.She looked quickly through the papers, sifting out from the pile anything that looked interesting.